CN205423840U - Hydrovalve with throttle structure - Google Patents
Hydrovalve with throttle structure Download PDFInfo
- Publication number
- CN205423840U CN205423840U CN201620175848.2U CN201620175848U CN205423840U CN 205423840 U CN205423840 U CN 205423840U CN 201620175848 U CN201620175848 U CN 201620175848U CN 205423840 U CN205423840 U CN 205423840U
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- throttle
- valve body
- head piece
- valve
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Abstract
The utility model relates to a hydrovalve with throttle structure, including valve body, setting case, valve plug stem, setting the disk seat valve body in of setting on the case in the valve body, be provided with a notch cuttype flow channel in the valve body, be provided with first throttle mouth on the disk seat be provided with second throttle mouth on the valve body, just second grade throttle structure is established ties into to first throttle mouth and second throttle mouth. The utility model discloses a be provided with first throttle mouthful and second throttle mouthful, and first throttle mouthful establishes ties into second grade throttle structure with second throttle mouth, can reduce the pressure differential at every throttle mouth both ends like this, reduce the damage of cavitating for the anti cavitation erosion ability of valve strengthens greatly.
Description
Technical field
This utility model relates to valve class technical field, particularly relates to a kind of hydraulic valve with throttle structure.
Background technology
Hydraulic valve is the Automation Elements of a kind of pressure oil operation, and it is controlled by distributing valve pressure oil, is generally applied in combination with electromagnetic distributing valve, can be used for distant control power station oil, the break-make of gas and water pipe-line system.Be usually used in clamping, control, the oil circuit such as lubrication.Hydraulic valve is divided into direction valve, flow valve, pressure valve etc..
At present during the use of hydraulic valve, can produce cavitation, cavitation erosion produces the erosion of two kinds of forms on spool and valve seat: one is large-sized pit, single isolated bubbles rupture and cause；Another kind is the pit that some are less, is the impact cumulative function more weak by some intensity.
Utility model content
This utility model is in order to overcome deficiency of the prior art, it is provided that a kind of hydraulic valve with throttle structure.
This utility model is to be achieved through the following technical solutions:
A kind of hydraulic valve with throttle structure, the spool including valve body, being arranged in valve body, the valve core rod being arranged on spool, the valve seat that is arranged in valve body, a notch cuttype fluid course it is provided with in described valve body, first segment head piece it is provided with on described valve seat, described valve body is provided with second section head piece, and described first segment head piece and second section head piece are connected into two-step throttle structure.
As optimal technical scheme of the present utility model, described first segment head piece is an inclined-plane, and described second section head piece is also an inclined-plane.
As optimal technical scheme of the present utility model, between described valve body and spool, it is provided with sealing ring.
As optimal technical scheme of the present utility model, described sealing ring is rectangular seal, and uses elastane to make.
As optimal technical scheme of the present utility model, described first segment head piece is identical with the gradient of second section head piece.
Compared with prior art, the beneficial effects of the utility model are: this utility model is provided by first segment head piece and second section head piece, and first segment head piece and second section head piece are connected into two-step throttle structure, so can reduce the pressure reduction at each restriction two ends, reduce cavitation erosion to damage so that the anti-cavitation ability of valve is greatly enhanced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Referring to Fig. 1, Fig. 1 is structural representation of the present utility model.
Described a kind of hydraulic valve with throttle structure, the spool 2 including valve body 1, being arranged in valve body 1, the valve core rod 3 being arranged on spool 2, the valve seat 4 that is arranged in valve body 1, a notch cuttype fluid course 5 it is provided with in described valve body 1, it is provided with first segment head piece 6 on described valve seat 4, described valve body 1 is provided with second section head piece 7, and described first segment head piece 6 and second section head piece 7 are connected into two-step throttle structure, it is provided with sealing ring 8 between described valve body 1 and spool 2, described sealing ring 8 is rectangular seal, and uses elastane to make.It is provided by first segment head piece 6 and second section head piece 7, and first segment head piece 6 and second section head piece 7 are connected into two-step throttle structure, so can reduce the pressure reduction at each restriction two ends, reduce cavitation erosion and damage so that the anti-cavitation ability of valve is greatly enhanced.
Described first segment head piece 6 is an inclined-plane, and described second section head piece 7 is also an inclined-plane, and described first segment head piece 6 is identical with the gradient of second section head piece 7.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (5)
1. a hydraulic valve with throttle structure, including valve body (1), the spool (2) being arranged in valve body (1), the valve core rod (3) being arranged on spool (2), the valve seat (4) being arranged in valve body (1), a notch cuttype fluid course (5) it is provided with in described valve body (1), it is characterized in that: on described valve seat (4), be provided with first segment head piece (6), described valve body (1) is provided with second section head piece (7), and described first segment head piece (6) and second section head piece (7) are connected into two-step throttle structure.
A kind of hydraulic valve with throttle structure the most according to claim 1, it is characterised in that: described first segment head piece (6) is an inclined-plane, and described second section head piece (7) is also an inclined-plane.
A kind of hydraulic valve with throttle structure the most according to claim 1, it is characterised in that: it is provided with sealing ring (8) between described valve body (1) and spool (2).
A kind of hydraulic valve with throttle structure the most according to claim 3, it is characterised in that: described sealing ring (8) is rectangular seal, and uses elastane to make.
A kind of hydraulic valve with throttle structure the most according to claim 2, it is characterised in that: described first segment head piece (6) is identical with the gradient of second section head piece (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620175848.2U CN205423840U (en) | 2016-03-08 | 2016-03-08 | Hydrovalve with throttle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620175848.2U CN205423840U (en) | 2016-03-08 | 2016-03-08 | Hydrovalve with throttle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423840U true CN205423840U (en) | 2016-08-03 |
Family
ID=56533243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620175848.2U Active CN205423840U (en) | 2016-03-08 | 2016-03-08 | Hydrovalve with throttle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423840U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709826A (en) * | 2020-12-21 | 2021-04-27 | 华中科技大学 | Radio frequency equipment simulation resistance piece and manufacturing method thereof |
| CN113719656A (en) * | 2021-08-30 | 2021-11-30 | 华中科技大学 | Follow-up valve core assembly, direct-acting overflow valve and pilot-operated overflow valve |
-
2016
- 2016-03-08 CN CN201620175848.2U patent/CN205423840U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709826A (en) * | 2020-12-21 | 2021-04-27 | 华中科技大学 | Radio frequency equipment simulation resistance piece and manufacturing method thereof |
| CN112709826B (en) * | 2020-12-21 | 2022-03-18 | 华中科技大学 | Radio frequency equipment simulation resistance piece and manufacturing method thereof |
| CN113719656A (en) * | 2021-08-30 | 2021-11-30 | 华中科技大学 | Follow-up valve core assembly, direct-acting overflow valve and pilot-operated overflow valve |
| CN113719656B (en) * | 2021-08-30 | 2022-06-14 | 华中科技大学 | Follow-up valve core assembly, direct-acting overflow valve and pilot-operated overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |